Sweden-Number/dlls/msacm/internal.c

193 lines
5.4 KiB
C

/* -*- tab-width: 8; c-basic-offset: 4 -*- */
/*
* MSACM32 library
*
* Copyright 1998 Patrik Stridvall
* 1999 Eric Pouech
*/
#include <string.h>
#include "winbase.h"
#include "windef.h"
#include "wingdi.h"
#include "winuser.h"
#include "winerror.h"
#include "mmsystem.h"
#include "msacm.h"
#include "msacmdrv.h"
#include "wineacm.h"
#include "debugtools.h"
DEFAULT_DEBUG_CHANNEL(msacm);
/**********************************************************************/
HANDLE MSACM_hHeap = (HANDLE) NULL;
PWINE_ACMDRIVERID MSACM_pFirstACMDriverID = NULL;
PWINE_ACMDRIVERID MSACM_pLastACMDriverID = NULL;
/***********************************************************************
* MSACM_RegisterDriver()
*/
PWINE_ACMDRIVERID MSACM_RegisterDriver(LPSTR pszDriverAlias, LPSTR pszFileName,
HINSTANCE hinstModule)
{
PWINE_ACMDRIVERID padid;
TRACE("('%s', '%s', 0x%08x)\n", pszDriverAlias, pszFileName, hinstModule);
padid = (PWINE_ACMDRIVERID) HeapAlloc(MSACM_hHeap, 0, sizeof(WINE_ACMDRIVERID));
padid->obj.dwType = WINE_ACMOBJ_DRIVERID;
padid->obj.pACMDriverID = padid;
padid->pszDriverAlias = NULL;
if (pszDriverAlias)
{
padid->pszDriverAlias = HeapAlloc( MSACM_hHeap, 0, strlen(pszDriverAlias)+1 );
strcpy( padid->pszDriverAlias, pszDriverAlias );
}
padid->pszFileName = NULL;
if (pszFileName)
{
padid->pszFileName = HeapAlloc( MSACM_hHeap, 0, strlen(pszFileName)+1 );
strcpy( padid->pszFileName, pszFileName );
}
padid->hInstModule = hinstModule;
padid->bEnabled = TRUE;
padid->pACMDriverList = NULL;
padid->pNextACMDriverID = NULL;
padid->pPrevACMDriverID = MSACM_pLastACMDriverID;
if (MSACM_pLastACMDriverID)
MSACM_pLastACMDriverID->pNextACMDriverID = padid;
MSACM_pLastACMDriverID = padid;
if (!MSACM_pFirstACMDriverID)
MSACM_pFirstACMDriverID = padid;
return padid;
}
/***********************************************************************
* MSACM_RegisterAllDrivers()
*/
void MSACM_RegisterAllDrivers(void)
{
LPSTR pszBuffer;
DWORD dwBufferLength;
/* FIXME
* What if the user edits system.ini while the program is running?
* Does Windows handle that?
*/
if (MSACM_pFirstACMDriverID)
return;
/* FIXME: Do not work! How do I determine the section length? */
dwBufferLength = 1024;
/* EPP GetPrivateProfileSectionA("drivers32", NULL, 0, "system.ini"); */
pszBuffer = (LPSTR) HeapAlloc(MSACM_hHeap, 0, dwBufferLength);
if (GetPrivateProfileSectionA("drivers32", pszBuffer, dwBufferLength, "system.ini")) {
char* s = pszBuffer;
while (*s) {
if (!strncasecmp("MSACM.", s, 6)) {
char *s2 = s;
while (*s2 != '\0' && *s2 != '=') s2++;
if (*s2) {
*s2 = '\0';
MSACM_RegisterDriver(s, s2 + 1, 0);
*s2 = '=';
}
}
s += strlen(s) + 1; /* Either next char or \0 */
}
}
HeapFree(MSACM_hHeap, 0, pszBuffer);
MSACM_RegisterDriver("msacm32.dll", "msacm32.dll", 0);
}
/***********************************************************************
* MSACM_UnregisterDriver()
*/
PWINE_ACMDRIVERID MSACM_UnregisterDriver(PWINE_ACMDRIVERID p)
{
PWINE_ACMDRIVERID pNextACMDriverID;
while (p->pACMDriverList)
acmDriverClose((HACMDRIVER) p->pACMDriverList, 0);
if (p->pszDriverAlias)
HeapFree(MSACM_hHeap, 0, p->pszDriverAlias);
if (p->pszFileName)
HeapFree(MSACM_hHeap, 0, p->pszFileName);
if (p == MSACM_pFirstACMDriverID)
MSACM_pFirstACMDriverID = p->pNextACMDriverID;
if (p == MSACM_pLastACMDriverID)
MSACM_pLastACMDriverID = p->pPrevACMDriverID;
if (p->pPrevACMDriverID)
p->pPrevACMDriverID->pNextACMDriverID = p->pNextACMDriverID;
if (p->pNextACMDriverID)
p->pNextACMDriverID->pPrevACMDriverID = p->pPrevACMDriverID;
pNextACMDriverID = p->pNextACMDriverID;
HeapFree(MSACM_hHeap, 0, p);
return pNextACMDriverID;
}
/***********************************************************************
* MSACM_UnregisterAllDrivers()
* FIXME
* Where should this function be called?
*/
void MSACM_UnregisterAllDrivers(void)
{
PWINE_ACMDRIVERID p;
for (p = MSACM_pFirstACMDriverID; p; p = MSACM_UnregisterDriver(p));
}
/***********************************************************************
* MSACM_GetObj()
*/
PWINE_ACMOBJ MSACM_GetObj(HACMOBJ hObj, DWORD type)
{
PWINE_ACMOBJ pao = (PWINE_ACMOBJ)hObj;
if (pao == NULL || IsBadReadPtr(pao, sizeof(WINE_ACMOBJ)) ||
((type != WINE_ACMOBJ_DONTCARE) && (type != pao->dwType)))
return NULL;
return pao;
}
/***********************************************************************
* MSACM_GetDriverID()
*/
PWINE_ACMDRIVERID MSACM_GetDriverID(HACMDRIVERID hDriverID)
{
return (PWINE_ACMDRIVERID)MSACM_GetObj((HACMOBJ)hDriverID, WINE_ACMOBJ_DRIVERID);
}
/***********************************************************************
* MSACM_GetDriver()
*/
PWINE_ACMDRIVER MSACM_GetDriver(HACMDRIVER hDriver)
{
return (PWINE_ACMDRIVER)MSACM_GetObj((HACMOBJ)hDriver, WINE_ACMOBJ_DRIVER);
}
/***********************************************************************
* MSACM_Message()
*/
MMRESULT MSACM_Message(HACMDRIVER had, UINT uMsg, LPARAM lParam1, LPARAM lParam2)
{
PWINE_ACMDRIVER pad = MSACM_GetDriver(had);
return pad ? SendDriverMessage(pad->hDrvr, uMsg, lParam1, lParam2) : MMSYSERR_INVALHANDLE;
}